Artificial impedance surfaces for reduced dispersion in antenna feeding systems

George Goussetis; Jose Luis Gomez-Tornero; Alexandros P. Feresidis; Nikolaos K. Uzunoglu

doi:10.1109/TAP.2010.2071358

Artificial impedance surfaces for reduced dispersion in antenna feeding systems

George Goussetis^*, Jose Luis Gomez-Tornero, Alexandros P. Feresidis, Nikolaos K. Uzunoglu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

An impedance surface is presented that reduces the dispersion experienced upon propagation of broadband pulses within rectangular waveguides. The surface impedance is selected so that, within a frequency range, the transverse resonance condition is satisfied for longitudinal wavenumber that varies linearly with frequency. A synthesis procedure for practical surface topologies consisting of periodic dipole arrays is described. An example involving a finite structure is employed to illustrate the reduced dispersion. Numerical simulation results obtained from in-house mode-matching method as well as HFSS are presented. A prototype is fabricated and tested experimentally validating the theoretical predictions.

Original language	English
Pages (from-to)	3629-3636
Number of pages	8
Journal	IEEE Transactions on Antennas and Propagation
Volume	58
Issue number	11
DOIs	https://doi.org/10.1109/TAP.2010.2071358
Publication status	Published - Nov 2010

Keywords

design
pulse transmission
dispersion compensation
propagation
frequency selective surfaces
wave guide
waveguide dispersion
artificial surfaces
surface impedance
metamaterial

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10.1109/TAP.2010.2071358

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title = "Artificial impedance surfaces for reduced dispersion in antenna feeding systems",

abstract = "An impedance surface is presented that reduces the dispersion experienced upon propagation of broadband pulses within rectangular waveguides. The surface impedance is selected so that, within a frequency range, the transverse resonance condition is satisfied for longitudinal wavenumber that varies linearly with frequency. A synthesis procedure for practical surface topologies consisting of periodic dipole arrays is described. An example involving a finite structure is employed to illustrate the reduced dispersion. Numerical simulation results obtained from in-house mode-matching method as well as HFSS are presented. A prototype is fabricated and tested experimentally validating the theoretical predictions.",

keywords = "design, pulse transmission, dispersion compensation, propagation, frequency selective surfaces, wave guide, waveguide dispersion, artificial surfaces, surface impedance, metamaterial",

author = "George Goussetis and Gomez-Tornero, {Jose Luis} and Feresidis, {Alexandros P.} and Uzunoglu, {Nikolaos K.}",

year = "2010",

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T1 - Artificial impedance surfaces for reduced dispersion in antenna feeding systems

AU - Goussetis, George

AU - Gomez-Tornero, Jose Luis

AU - Feresidis, Alexandros P.

AU - Uzunoglu, Nikolaos K.

PY - 2010/11

Y1 - 2010/11

N2 - An impedance surface is presented that reduces the dispersion experienced upon propagation of broadband pulses within rectangular waveguides. The surface impedance is selected so that, within a frequency range, the transverse resonance condition is satisfied for longitudinal wavenumber that varies linearly with frequency. A synthesis procedure for practical surface topologies consisting of periodic dipole arrays is described. An example involving a finite structure is employed to illustrate the reduced dispersion. Numerical simulation results obtained from in-house mode-matching method as well as HFSS are presented. A prototype is fabricated and tested experimentally validating the theoretical predictions.

AB - An impedance surface is presented that reduces the dispersion experienced upon propagation of broadband pulses within rectangular waveguides. The surface impedance is selected so that, within a frequency range, the transverse resonance condition is satisfied for longitudinal wavenumber that varies linearly with frequency. A synthesis procedure for practical surface topologies consisting of periodic dipole arrays is described. An example involving a finite structure is employed to illustrate the reduced dispersion. Numerical simulation results obtained from in-house mode-matching method as well as HFSS are presented. A prototype is fabricated and tested experimentally validating the theoretical predictions.

KW - design

KW - pulse transmission

KW - dispersion compensation

KW - propagation

KW - frequency selective surfaces

KW - wave guide

KW - waveguide dispersion

KW - artificial surfaces

KW - surface impedance

KW - metamaterial

U2 - 10.1109/TAP.2010.2071358

DO - 10.1109/TAP.2010.2071358

M3 - Article

SN - 0018-926X

VL - 58

SP - 3629

EP - 3636

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 11

ER -

Artificial impedance surfaces for reduced dispersion in antenna feeding systems

Abstract

Keywords

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